{"created":"2023-06-20T14:40:41.380500+00:00","id":7607,"links":{},"metadata":{"_buckets":{"deposit":"17dce5a3-fb7c-490e-8b39-381559b44a17"},"_deposit":{"created_by":1,"id":"7607","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"7607"},"status":"published"},"_oai":{"id":"oai:jaxa.repo.nii.ac.jp:00007607","sets":["1543:1544:1558","1887:1891"]},"author_link":["40750","40749"],"item_5_alternative_title_1":{"attribute_name":"その他のタイトル","attribute_value_mlt":[{"subitem_alternative_title":"電流の切り替えによるエレクトロダイナミックテザーシステムの姿勢制御"}]},"item_5_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2006-03","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"269","bibliographicPageStart":"262","bibliographic_titles":[{"bibliographic_title":"第15回アストロダイナミクスシンポジウム講演後刷り集　2005"},{"bibliographic_title":"Proceedings of 15th Workshop on JAXA Astrodynamics and Flight Mechanics","bibliographic_titleLang":"en"}]}]},"item_5_description_16":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"本研究では、電流の切り替えによるエレクトロダイナミックテザーシステム(EDT: ElectroDynamic Tethered)の姿勢制御について、これまでに提案されている手法と比較して安全かつ高効率な運用を実現するための制御手法を示す。EDTのテザー内部の電流は、周辺のプラズマ環境や熱環境によって変動すると考えられている。電流の切り替えによる姿勢制御は、これら予測できない電流の変動の影響を避けることの出来る制御手法である。本研究では、軌道面内・面外を同時に姿勢制御する手法を提案し、新たに軌道パラメータの変化を考慮した安定性評価関数を導入した。数通りの数値計算により、まず本研究で提案する制御手法の有効性を実証し、さらに実際のシステムに適用するための方法を検討した。また特に楕円軌道において、従来の手法と比べてより安全かつ効率的な軌道降下が可能となることを示した。","subitem_description_type":"Abstract"}]},"item_5_description_17":{"attribute_name":"抄録（英）","attribute_value_mlt":[{"subitem_description":"A libration control strategy through electric current switching for an ElectroDynamic Tethered system (EDT) is presented. It is expected that the electric current in the tether experiences some unexpected change due to its plasma environment, thermal condition, etc. Libration control through current switching can avoid such changes and unexpected instability. A simple control law to determine current switching to stabilize both in-plane and out-of-plane libration is presented. A new stability function is also presented to facilitate the evaluation of the stability of a tethered system on an elliptic orbit. Through several numerical simulations, the effectiveness of the libration control strategy and the stability function is demonstrated. It is clearly shown that the stability function and a switching control toward a periodic solution facilitate a more appropriate stability evaluation and an efficient libration control. The control strategy is considered to be easily materialized in actual EDTs, and enables a more rapid and secure de-orbit.","subitem_description_type":"Other"}]},"item_5_description_32":{"attribute_name":"資料番号","attribute_value_mlt":[{"subitem_description":"資料番号: AA0063480042","subitem_description_type":"Other"}]},"item_5_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"宇宙航空研究開発機構宇宙科学研究本部"}]},"item_5_publisher_9":{"attribute_name":"出版者（英）","attribute_value_mlt":[{"subitem_publisher":"Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA/ISAS)"}]},"item_5_text_6":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"宇宙航空研究開発機構 総合技術研究本部"}]},"item_5_text_7":{"attribute_name":"著者所属（英）","attribute_value_mlt":[{"subitem_text_language":"en","subitem_text_value":"Japan Aerospace Exploration Agency Institute of Space Technology and Aeronautics"}]},"item_access_right":{"attribute_name":"アクセス権","attribute_value_mlt":[{"subitem_access_right":"metadata only access","subitem_access_right_uri":"http://purl.org/coar/access_right/c_14cb"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"武市, 昇"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Takeichi, Noboru","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"エレクトロダイナミックテザー","subitem_subject_scheme":"Other"},{"subitem_subject":"EDT","subitem_subject_scheme":"Other"},{"subitem_subject":"姿勢制御","subitem_subject_scheme":"Other"},{"subitem_subject":"秤動運動","subitem_subject_scheme":"Other"},{"subitem_subject":"降下","subitem_subject_scheme":"Other"},{"subitem_subject":"テザー衛星","subitem_subject_scheme":"Other"},{"subitem_subject":"運動方程式","subitem_subject_scheme":"Other"},{"subitem_subject":"安定性","subitem_subject_scheme":"Other"},{"subitem_subject":"電流","subitem_subject_scheme":"Other"},{"subitem_subject":"ローレンツ力","subitem_subject_scheme":"Other"},{"subitem_subject":"シミュレーション","subitem_subject_scheme":"Other"},{"subitem_subject":"地球地場","subitem_subject_scheme":"Other"},{"subitem_subject":"安定性評価関数","subitem_subject_scheme":"Other"},{"subitem_subject":"制御戦略","subitem_subject_scheme":"Other"},{"subitem_subject":"electrodynamic tether","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"EDT","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"attitude control","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"librational motion","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"descent","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"tethered satellite","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"equation of motion","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"stability","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"electric current","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Lorentz force","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"simulation","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"geomagnetic field","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"stability function","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"control strategy","subitem_subject_language":"en","subitem_subject_scheme":"Other"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"eng"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"conference paper","resourceuri":"http://purl.org/coar/resource_type/c_5794"}]},"item_title":"Libration control of an electrodynamic tethered system through electric current switching","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Libration control of an electrodynamic tethered system through electric current switching","subitem_title_language":"en"}]},"item_type_id":"5","owner":"1","path":["1558","1891"],"pubdate":{"attribute_name":"公開日","attribute_value":"2015-03-26"},"publish_date":"2015-03-26","publish_status":"0","recid":"7607","relation_version_is_last":true,"title":["Libration control of an electrodynamic tethered system through electric current switching"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-06-21T07:36:52.374804+00:00"}